GENERAL HISTOLOGY

Detailed explanation-1: -The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.

Detailed explanation-2: -Canal system is present in sponges meant for respiration, nutrition, excretion and reproduction while as water vascular system is present in echinoderms which is an extention of coelomic system meant for the circulation of water.

Detailed explanation-3: -water-vascular system. noun. : a system of vessels in echinoderms containing a circulating watery fluid that is used especially for the movement of tentacles and tube feet.

Detailed explanation-4: -Echinoderms have a characteristic coelomic water vascular system. This system is controlled hydraulically. It comprises a circumoral ring covering the esophagus which connects radial canals.

Detailed explanation-5: -The water vascular system is a variant of the body cavity that consists of a system of canals filled with fluid (watery).